Bravo Network is promoting its top food show with a 21-city cross-country trip: Top Chef–The Tour. It began back in April and it’s got two Texas stops this week (that’s not as many as New Yawk, but more than most other states). So if you can get away from work or class for an hour or two, why not go see cooking demos, register for prizes, and snap a few pictures. The really big stars won’t be there (what, you thought they would be out in the Texas heat!). But it should still be fun.  The Tour rolls into the near-Houston city of Katy Wednesday (tomorrow) and into San Antonio on Saturday. The big entertainment is a quick-fire-type  cookoff. In Katy, it’s between former Top Chef contestants Tiffany Derry and Kelly Liken and it takes place at LaCenterra at Cinco Ranch (23501 Cinco Ranch Boulevard); demo times are 10:30 a.m., noon, and 1:30 p.m.  In San Antonio on Saturday, the cookoff will pit Dale Talde against Ryan Scott. It will take place at H-E-B (the Alon Market store) at 8503 NW Military Highway. Demo times are the same as in Katy. Pre-registration tickets are not available. Just show up; it’s first-come, first-served. (If you can identify two two dudes in the picture, leave a comment. They don’t look like the two guys  who will be in San Antonio, unless they’ve, ahem, put on a little weight.)